%0 Journal Article
%T 金属泡沫–水的自然对流换热实验研究<br>Experimental Investigation of Natural Convection in Metal Foam-Water
%A 彭招
%A 潘阳
%A 钱维扬
%J Advances in Porous Flow
%P 1-8
%@ 2164-5663
%D 2016
%I Hans Publishing
%R 10.12677/APF.2016.61001
%X <div style=\"text-align:justify;\">
	<span style=\"line-height:1.5;font-size:14px;\">本文针对多孔介质材料中的自然对流换热问题，通过搭建充满金属泡沫–水的实验装置，探究了金属泡沫–水自然对流换热机理，讨论了加热功率、箱体倾斜角度对方腔内金属泡沫-水两相自然对流换热的影响，实验发现努谢尔数Nu随加热功率的增加而变大，随着倾斜角度的增大而变小，随着金属泡沫孔密度PPI的增大而减小。最终得到了箱体水平放置时5 PPI和10 PPI努谢尔数Nu随瑞利数Ra的变化规律。<br />
In this paper, an experiment apparatus filled with metal foam-water is set up to investigate the problem of natural convection about porous medium. A mechanism of natural convection of metal foam-water is investigated by experiments. Influences of heating power and angle of inclination on natural convection in the cavity filled with metal foam-water are discussed. It is found that the Nusselt number increases with heating power and decreases with the angle of inclination and pore density PPI of metal foam. A correlation of Nusselt number and Raleigh number is obtained when the cavity is horizontal with 5 PPI and 10 PPI.</span> 
</div>
%K 金属泡沫–水，自然对流，温差，孔密度<br>Metal Foam-Water
%K Natural Convection
%K Difference of Temperature
%K Pore Density
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=17278